Marine-engine governor



T. JACKSON.

MARINE ENGINE GOVERNOR.

APPLICATION man JUNE 11'. 1919.

Patentd Apr. 25,1922;

UNITED- srA'rE-s PATENT OFFER.

THOMAS JACKSON, orv LEWI'SHAM, LONDON, ENGLAND, assieNoa TO ALLAN AMsA or FOLKES'DONE,- ENGLAND. v

MARINE-ENGINE GOVERNOR.

Specification of Letters Patent- Application filed thine 11, I919. Serial No. 303,4 G6f (GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 192 1, 41 STAT. L, 1313.)

To all whom it may concern.

Be it known that THOMAS JAoKsoN, sub ject of the King of Great Britain and Ireland, residin at 27 Mount Pleasant Road, Lewisham, fondon, S. E., England, has invented new'and useful Improvements in Marine-Engine Governors, (for which 1 have filedapplication in Great Britain November 20, 1917, No. 17,113,) of-which the following is a specification.

This invention relates to improvements in marine engine governors, and refers to that class of apparatus in which a gravity controlled element is operated by the movement of the ship to control the action of a power device for operating the throttle valve or other arrangement by which the speed of the engine is regulated, In the past it has been customary to use a tiltable tube containing mercury, or a pivoted device carry ing a rolling body, which alters its position when the ship alters its angle with the horizontal, the device being adapted to operate an externally disposed valve or other control device. The present invention is an improved device for effecting the same purpose in a simple and certain manner, which can be manufactured cheaply, be fool-proof in action, and be inaccessible to alteration of action by the impossibility of interference with its active elements, and consists in a device which is rigidly attached to the ship in an adjustable vmanner having a tiltable control element carrying a mobile body controlled by gravity by which the passage of power medium to the throttle operating gear is controlled by gravity during the angular movement of the ship. 7

In order that the invention may be the better understood '1 will now proceed to describe the same in relation to the accompanying drawing, reference being had tothe letters and figures markedv thereon. Like letters refer to like parts in'thevarious figures, in which :-Fig. 1 is a part sectional view of a device constructed in accordanc with this invention.

Fig. 2 is a sectional plan of the casing with the tiltable member removed showing the valve seat and passages for the fluid under pressure.

According to the invention a casing or box a is pivotally mounted at 6 upon a fixed support 0 rigidly attached to the ship or to some device carried by the ship, for example, one of the engine columns.

Patenteanpr.25,1922

This casing or box a is further supported by another sup.-

port d which is adjustable bymeans of nuts 6 on a screwed'stem f so that the angle of the box relative to the ship can be adjusted within a given range, and when so adjusted can be rigidly locked in position so that the relative position of the box with respect to the ship is a permanent and rigid one until readjustment is necessary. The nuts e may if desired be secured by a suitable device or keeper under lock and key. Within the box a is mounted an element 9 which rocks upon a pivot it carried in lugs i and provided with means such as a trough j alongwhich a rolling body or weight can travel, so that.

when the weight is rolls towards one end it tilts the element in one direction, and, to-

wards the other end it tilts it in the opposite direction. This rocking element 9 di-' rectly carries a valve Z pivoted at m or in turn it may be made to operate a valve not carried by the element 9; in either case the valve Z controls the exit n from the box. An

adjustable stopo is arranged in the bottom of the casing to regulate the angular movement of the element g. The boxw is further provided with communicating means suchv as the operation ofthe power device connected I to the throttle valve or other regulating arrangement by whlch the speedof the engine is regulated.

It will be seen by this arrangement that the angularity of the box a can beset to the particular trim of the ship so that under normalconditions the throttle valve is not operated, but in theevent of the ship alter:

ing its angular position so that the rolling weight 70 Will run along the rocking element 9 and operate it on its axis, the valve Z will be opened and the throttle valve gear v p be operated.

- What I claim is a power device operates the throttle and is controlled by a device under thecontrol of L gravity, the arrangement of a closed casing having an inlet and outlet for fluid pressure pivoted to a fixed support on the ship,'-&

'a valve actuated by said track adapted to control the passage of the fluid and adjust able fixing means by which the casing can be angularly adjusted. to any position rela- 10 tive to the keel of the ship to give the re;

quired operation of the track a etuated va lve,

substantially as described.

In testimony whereof I name to this specification inthepresence-of two subscribing Witnesses.

THOMAS JACKSON.

Witnesses: I

DORIS Hrronooox,

I OLIVE WnsT.

have signed my 7 

